Plate Tectonics Crossword

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Across
  1. 4. a process where new oceanic earth forms at ridges
  2. 5. a boundary that occurs when two plates slide past each other
  3. 7. an underwater mountain range
  4. 8. a boundary that happens when two plates separate
  5. 9. made of solid iron and nickel
Down
  1. 1. less dense objects rise and more dense objects sink
  2. 2. the theory that the continents can drift apart
  3. 3. influential in the theory of continental drift
  4. 6. a boundary that occurs when two plates collide
  5. 10. Made of liquid iron and nickel